<template>
    <div>
        <el-row>
            <el-col :span="21"><el-input v-model="input"  placeholder="Please input" @keydown.enter="add"/></el-col>
            <el-col :span="3">   <el-button type="success" @click="add()" >添加任务</el-button></el-col>
        </el-row>
    </div>
</template>
<script>
export default {
    data(){
        return{
            input:''
        }
    },
    methods:{
        add(){
            if(this.input.trim()===''){
                return;
            }
            this.$emit("add",this.input)
            this.input=''
        }
    }
}
</script>